pandora/pandora/event/views.py
2012-05-27 13:52:12 +02:00

259 lines
8.9 KiB
Python

# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
from __future__ import division
from django.db.models import Max, Min, Count
from django.conf import settings
import ox
from ox.utils import json
from ox.django.decorators import login_required_json
from ox.django.shortcuts import render_to_json_response, get_object_or_404_json, json_response
from ox.django.api import actions
from item import utils
import models
@login_required_json
def addEvent(request):
'''
param data
{
'name': '',
'start': ''
'end': ''
}
required keys: name, start, end
'''
data = json.loads(request.POST['data'])
existing_names = []
exists = False
names = [data['name']] + data.get('alternativeNames', [])
for name in names:
name = ox.decode_html(name)
if models.Event.objects.filter(defined=True,
name_find__icontains=u'|%s|'%name).count() != 0:
exists = True
existing_names.append(name)
if not exists:
models.Event.objects.filter(defined=False, name__in=names).delete()
data['name'] = ox.escape_html(data['name'])
event = models.Event(name=data['name'])
for key in ('start', 'startTime', 'end', 'endTime', 'duration', 'durationTime',
'type', 'alternativeNames'):
if key in data and data[key]:
value = data[key]
if isinstance(value, basestring):
value = ox.escape_html(value)
if key == 'alternativeNames':
value = tuple([ox.escape_html(v) for v in value])
setattr(event, key, value)
if 'nameSort' in data:
value = ox.escape_html(data['nameSort'])
event.set_name_sort(value)
event.matches = 0
event.save()
event.update_matches()
response = json_response(status=200, text='created')
response['data'] = event.json()
else:
response = json_response(status=409, text='name exists')
response['data']['names'] = existing_names
return render_to_json_response(response)
actions.register(addEvent, cache=False)
@login_required_json
def editEvent(request):
'''
param data
{
'id': event id,
'name': ''
...
}
update provides keys of event with id
'''
data = json.loads(request.POST['data'])
event = get_object_or_404_json(models.Event, pk=ox.fromAZ(data['id']))
if event.editable(request.user):
conflict = False
conflict_names = []
names = [data.get('name', event.name)] + data.get('alternativeNames', [])
for name in names:
if models.Event.objects.filter(defined=True,
name_find__icontains=u'|%s|'%name).exclude(id=event.id).count() != 0:
conflict = True
conflict_names.append(name)
if not conflict:
models.Event.objects.filter(defined=False, name__in=names).delete()
for key in ('name', 'start', 'startTime', 'end', 'endTime', 'duration', 'durationTime',
'type', 'alternativeNames'):
if key in data:
value = data[key]
if isinstance(value, basestring):
value = ox.escape_html(value)
if key == 'alternativeNames':
value = tuple([ox.escape_html(v) for v in value])
setattr(event, key, value)
if 'name' in data:
event.set_name_sort(ox.escape_html(data['name']))
if 'nameSort' in data:
event.set_name_sort(ox.escape_html(data['nameSort']))
event.save()
if 'name' in data or 'alternativeNames' in data:
event.update_matches()
response = json_response(status=200, text='updated')
response['data'] = event.json()
else:
response = json_response(status=409, text='Event name conflict')
response['data']['names'] = conflict_names
else:
response = json_response(status=403, text='permission denied')
return render_to_json_response(response)
actions.register(editEvent, cache=False)
@login_required_json
def removeEvent(request):
'''
param data {
id: event id
}
remove Event with given id
'''
data = json.loads(request.POST['data'])
event = get_object_or_404_json(models.Event, pk=ox.fromAZ(data['id']))
if event.editable(request.user):
event.delete()
response = json_response(status=200, text='removed')
else:
response = json_response(status=403, text='permission denied')
return render_to_json_response(response)
actions.register(removeEvent, cache=False)
def parse_query(data, user):
query = {}
query['range'] = [0, 100]
query['sort'] = [{'key':'name', 'operator':'+'}]
for key in ('keys', 'group', 'list', 'range', 'sort', 'query'):
if key in data:
query[key] = data[key]
query['qs'] = models.Event.objects.find(query, user)
if 'itemsQuery' in data:
item_query = models.Item.objects.find({'query': data['itemsQuery']}, user)
query['qs'] = query['qs'].filter(items__in=item_query)
return query
def order_query(qs, sort):
order_by = []
for e in sort:
operator = e['operator']
if operator != '-':
operator = ''
key = {
'name': 'name_sort',
}.get(e['key'], e['key'])
order = '%s%s' % (operator, key)
order_by.append(order)
if order_by:
qs = qs.order_by(*order_by, nulls_last=True)
return qs
def findEvents(request):
'''
param data
{'query': query, 'sort': array, 'range': array}
query: query object, more on query syntax at
https://wiki.0x2620.org/wiki/pandora/QuerySyntax
itemsQuery: {
//see find request
},
sort: array of key, operator dics
[
{
key: "year",
operator: "-"
},
{
key: "director",
operator: ""
}
]
range: result range, array [from, to]
itemsQuery can be used to limit the resuts to matches in those items.
with keys, items is list of dicts with requested properties:
return {'status': {'code': int, 'text': string},
'data': {items: array}}
Positions
param data
{'query': query, 'ids': []}
query: query object, more on query syntax at
https://wiki.0x2620.org/wiki/pandora/QuerySyntax
ids: ids of events for which positions are required
'''
response = json_response(status=200, text='ok')
data = json.loads(request.POST['data'])
query = parse_query(data, request.user)
qs = order_query(query['qs'], query['sort'])
qs = qs.distinct()
if 'keys' in data:
qs = qs[query['range'][0]:query['range'][1]]
qs = qs.select_related()
response['data']['items'] = [p.json(request.user) for p in qs]
elif 'position' in query:
ids = [i.get_id() for i in qs]
data['conditions'] = data['conditions'] + {
'value': data['position'],
'key': query['sort'][0]['key'],
'operator': '^'
}
query = parse_query(data, request.user)
qs = order_query(query['qs'], query['sort'])
if qs.count() > 0:
response['data']['position'] = utils.get_positions(ids, [qs[0].itemId])[0]
elif 'positions' in data:
ids = [i.get_id() for i in qs]
response['data']['positions'] = utils.get_positions(ids, data['positions'])
else:
response['data']['items'] = qs.count()
return render_to_json_response(response)
actions.register(findEvents)
def getEventNames(request):
'''
param data {
}
return {
status: {
code: int,
text: string
},
data: {
items: [
{name:, matches}
]
}
}
'''
response = json_response({})
layers = [l['id'] for l in filter(lambda l: l['type'] == 'event',
settings.CONFIG['layers'])]
items = models.Annotation.objects.filter(layer__in=layers,
events__id=None).order_by('value')
items = items.values('value').annotate(Count('value'))
response['data']['items'] = [{
'name': i['value'],
'matches': i['value__count']
} for i in items]
return render_to_json_response(response)
actions.register(getEventNames)